polterizer Posted November 2, 2015 Share Posted November 2, 2015 (edited) Hello guys, I was testing for make a smoke trail using frm pop particles, i was figuring out about make a dissipation with the volume from pop but cant found solution yet, have tried with BB inside volumevop, not worked.. the idea is dissipate the last particles with age or life or something but in volume as "fade", if you know any solution i would apreciate it, there is the hip if you want test or solve. thanks! cheers Carlos rocket_trail_smoke_v01.hip Edited November 2, 2015 by polterizer Quote Link to comment Share on other sites More sharing options...
bandini Posted November 3, 2015 Share Posted November 3, 2015 I am working on something similar at home. Didn't check your hip file yet, but you could look at the volume rasterize points sop and set a density attribute on each particle. That sop also has some volume displacement and a few other cool features in it. Quote Link to comment Share on other sites More sharing options...
polterizer Posted November 3, 2015 Author Share Posted November 3, 2015 I am working on something similar at home. Didn't check your hip file yet, but you could look at the volume rasterize points sop and set a density attribute on each particle. That sop also has some volume displacement and a few other cool features in it. Hey! have tested the volume rasterize points same as have the whitewater default one but i dont see there dispears as dissipation at last of trail.. can you show me that ? if you can of course thanks cheers C Quote Link to comment Share on other sites More sharing options...
polterizer Posted November 3, 2015 Author Share Posted November 3, 2015 (edited) i think found solution, just point vop as age > fit > density before connect to volume rasterize point, im testing now, also will play with LIFE , hope i can get it correct Edited November 3, 2015 by polterizer 1 Quote Link to comment Share on other sites More sharing options...
bandini Posted November 3, 2015 Share Posted November 3, 2015 Use @nage. This is the implicit normalized age of the particles. Connect that into two ramps, one for density (decreasing over nage) and one for pscale (increasing over nage). Should get you what you need. 1 Quote Link to comment Share on other sites More sharing options...
polterizer Posted November 3, 2015 Author Share Posted November 3, 2015 Use @nage. This is the implicit normalized age of the particles. Connect that into two ramps, one for density (decreasing over nage) and one for pscale (increasing over nage). Should get you what you need. hi, this is more easy and work fine yes, i had diferent: using age and life connected to fit and the fit to ramp as curves then to density, works also and i compared with your, i see same result but not 100% sure thank you for the method! cheers C Quote Link to comment Share on other sites More sharing options...
bandini Posted November 3, 2015 Share Posted November 3, 2015 Yeah, should be the same. I believe @nage is @age/@life. Just less nodes and a free attribute this way. Quote Link to comment Share on other sites More sharing options...
cwalrus Posted March 10, 2016 Share Posted March 10, 2016 Hey would you guys mind posting your result HIPs for this to study? thanks! Quote Link to comment Share on other sites More sharing options...
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